(Topic ID: 283600)

Help identifying strange PCB's

By Haymaker

10 months ago


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  • 31 posts
  • 7 Pinsiders participating
  • Latest reply 9 months ago by Kneissl
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    #1 10 months ago

    I'm going though a box of random PCB's I aquired and I'm trying to identify what they all are, if they are worth keeping, if they are worth anything for selling ect. I'm not super familiar with all pinball boards so some of these might be obvious, but other ones I have noticed have strange differences between regular production boards, and some I'm just not sure on.

    We'll start with board 1. I've identified it as the 8 high power PCB from twilight zone. I'm pretty sure this normally only has 5 transistors but this one is fully populated with 8

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    #2 10 months ago

    Next I'm guessing that these are some sort of lamp or switch matrix test boards?

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    #3 10 months ago
    Quoted from Haymaker:

    Next I'm guessing that these are some sort of lamp or switch matrix test boards?
    [quoted image][quoted image][quoted image]

    Are those light boards for a test fixture? Lmk if you sell those.

    #4 10 months ago
    Quoted from Tomass:

    Are those light boards for a test fixture? Lmk if you sell those.

    I'm guessing so but i really have no idea and I'm not sure even what an approximate value would be

    #5 10 months ago
    Quoted from Haymaker:

    I'm guessing so but i really have no idea and I'm not sure even what an approximate value would be

    I do bench testing on system 11's and I think they would serve that purpose. I also have no clue on value at all.

    #6 10 months ago
    Quoted from Haymaker:

    but this one is fully populated with 8

    I think this was also used in DM with all 8 installed.

    Quoted from Haymaker:

    Next I'm guessing that these are some sort of lamp or switch matrix test boards?

    Yep lamp matrix. I would also be interested in one if reasonable. Let me know.

    #7 10 months ago

    This one appears to be the Bi-Directional Motor Board (A-15680) but it's quite a bit different than what it looks like in pictures with one big transistor instead of 4 (see last pic)

    16078072949382145377925702750130 (resized).jpg16078073178272456424883485098174 (resized).jpg16078073361446799543125414888018 (resized).jpgA-15680BiDirectionalMotorBoardSchematic (resized).jpg
    #8 10 months ago
    Quoted from GRUMPY:

    I thing this was also used in DM with all 8 installed.

    Yep lamp matrix. I would also be interested in one if reasonable. Let me know.

    I'm sure you would use them more than me if you need both. I would take 1 though if possible. Again, I don't know the value.

    #9 10 months ago
    Quoted from Tomass:

    I would take 1 though if possible.

    One is all you need to use on a test rig.

    #10 10 months ago
    Quoted from GRUMPY:

    One is all you need to use on a test rig.

    I figured you would have a way to sub flashers in too and test solenoids. Lol

    #11 10 months ago
    Quoted from Haymaker:

    This one appears to be the Bi-Directional Motor Board (A-15680)

    Yes the pic 1-3 is a bi direction motor board from a Shadow.

    I'm not sure about the last pic. If it is a bi direction Motor board, it sure isn't the same circuit. Maybe a redesign to use cheaper parts.

    #12 10 months ago
    Quoted from Tomass:

    I figured you would have a way to sub flashers in too and test solenoids.

    That would take another different board.

    DumbAss makes all these test boards now. Very reasonable too.

    #13 10 months ago
    Quoted from GRUMPY:

    Yes the pic 1-3 is a bi direction motor board from a Shadow.
    I'm not sure about the last pic. If it is a bi direction Motor board, it sure isn't the same circuit. Maybe a redesign to use cheaper parts.

    Last pic is the picture i saved from pinwiki, that's what they had as their sample pic

    #14 10 months ago

    I think these are 24 opto boards? Just not really sure if these are even worth keeping around?

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    #15 10 months ago
    Quoted from Haymaker:

    Next I'm guessing that these are some sort of lamp or switch matrix test boards?
    [quoted image][quoted image][quoted image]

    I bought one last year for $50 from a guy out of Chicago.

    #16 10 months ago
    Quoted from Haymaker:

    Next I'm guessing that these are some sort of lamp or switch matrix test boards?
    [quoted image][quoted image][quoted image]

    Is that board from the Mr & Ms. pac man pinball machine?

    #17 10 months ago

    I have a few more to post as well

    #18 10 months ago
    Quoted from Dent00:

    Is that board from the Mr & Ms. pac man pinball machine?

    No, those use a really odd tiny bulb in a socket.

    #19 10 months ago
    Quoted from Haymaker:

    I think these are 24 opto boards?

    This is a, 24 Inch Opto Board (A-15646) used in BSD, TS, JD and NBA.

    #20 10 months ago
    Quoted from GRUMPY:

    This is a, 24 Inch Opto Board (A-15646) used in BSD, TS, JD and NBA.

    JD has different opto boards.
    List of machines: BSD, NBA, SWE1, TS.

    2 weeks later
    #21 9 months ago

    Really not sure on this one

    16090964159424765338865114777032 (resized).jpg
    #22 9 months ago
    Quoted from Haymaker:

    Really not sure on this one

    This is a display driver board for WPC game that still had a alphanumeric display like Fun House.

    #23 9 months ago
    Quoted from GRUMPY:

    This is a display driver board for WPC game that still had a alphanumeric display like Fun House.

    Ok well then what's this one? Because I thought this one was that. Man i am bad at this.
    Also should there be displays attached, or are they seperate? I'm sorry if these are dumb questions

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    #24 9 months ago

    This one I thought was just a sound board because it's got Judge dredd sound roms in it, but it doesn't match any wpc sound board I've seen. I looked up a picture of the JD back box and i couldn't spot this board either

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    #25 9 months ago

    Ok here's the last 2 boards I have that i wasn't sure of

    20201227_141829 (resized).jpg20201227_141836 (resized).jpg
    #26 9 months ago
    Quoted from Haymaker:

    Ok well then what's this one? Because I thought this one was that. Man i am bad at this.

    This board is a display driver board for games that have separate displays and a credit display, like HS and PB.

    #27 9 months ago
    Quoted from Haymaker:

    I looked up a picture of the JD back box and i couldn't spot this board either

    I have never seen this board before. Sorry.

    #28 9 months ago
    Quoted from Haymaker:

    Ok here's the last 2 boards I have that i wasn't sure of

    The smaller board is a sound overlay board from a WW.

    The larger board is an accelerator board from a HS2. Its missing the driver transistors TIP102.

    #29 9 months ago
    Quoted from Haymaker:

    This one I thought was just a sound board because it's got Judge dredd sound roms in it, but it doesn't match any wpc sound board I've seen. I looked up a picture of the JD back box and i couldn't spot this board either
    [quoted image]

    Its not a pinball sound board, but still a bally/midway board

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    #30 9 months ago
    Quoted from Pinball_Basement:

    Its not a pinball sound board, but still a bally/midway board[quoted image]

    Ahhh that explains it! I didn't even know they made a judge dredd arcade!

    Thank you for all the help everyone

    #31 9 months ago
    Quoted from Pinball_Basement:

    Its not a pinball sound board, but still a bally/midway board[quoted image]

    wow, nice catch.. I've never seen a dredd arcade either.

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